Tap and reamer wrench



April 1944. I B. J. WIECZOREK I 2,346,097

TAP AND REAMER WRENCH Filed July 21, 1943 Inventor Patented Apr. 4, 1944 UNITED STATES PATENT OFFICE 2,346,097 TAP AND REAMER WRENCH Boleslaw J. Wieczorek, Detroit, Mich.

Application July 21, 1943, Serial No. 495,653

3 Claims. (Cl. 10-449) The present invention relates to new and useful improvements in tap and reamer wrenches, and has for its primary object to provide, in a man.- ner as hereinafter set forth, a device of this character comprising coacting jaws of novel construction for receiving therebetween and firmly securing different sizes of tools.

Other objects of the invention are to provide a tap and reamer wrench of the character described which will be comparatively simple in construction, strong, durable, highly efiicient and reliable in use, compact, and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawing wherein like characters of reference designate corresponding parts throughout the several views, and wherein- Figure 1 is an elevational view of a tap and reamer wrench constructed in accordance with the present invention.

Figure 2 is a view in longitudinal section through an intermediate portion of the device, taken substantially on the line 22 of Figure 1.

Figure 3 is a cross sectional view, taken substantially on the line 3-3 of Figure 1.

Figure 4 is a laid out view, showing the arrangement of the different sizes of grooves or recesses in the jaws.

Referring now to the drawing in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a pair of longitudinally aligned, knurled handles I and 2. The handles l and 2 are provided with integral heads or enlargements 3 on their inner end portions.

Projecting longitudinally from the headed inner end of the handle I is an integral shank 4. The shank 4 includes a threaded end portion 5. The inner end portion of the handle 2 is provided with a threaded socket 6 which receives the portion of the shank 4 for connecting the handles I and 2.

Opposed hexagonal jaws 1 are rotatably mounted on the shank 4 in abutting engagement with the heads 3. Pins 8 are fixed longitudinally in the jaws 1 and project from the faces thereof. Extending longitudinally into the jaws 1 from the faces thereof are sockets 9 which slidably receive the pins 8 for connecting said jaws in a manner to prevent relative rotation thereof. A coil spring l0 encircles one of the pins 8 for yieldingly urging the jaws l apart. The adjacent socket 9 is counterbored, as at H, for the reception of one end portion of the coil spring Ill.

The opposed faces of the jaws l have formed therein substantially V-shaped, radial, complemental grooves or recesses I2 for the reception of various sizes of taps or reamers, as at I3. The faces of the jaws l are further provided with complemental recesses l4 for the reception of a center drill.

It is thought that the manner in which the device is used will be readily apparent from a consideration of the foregoing. Briefly, the shank 4 is screwed outwardly in the handle 2 for permitting the coil spring ID to open the jaws 1 for the reception of the tool therebetween. The tool is engaged in the correct pair of complemental recesses or grooves in the opposed faces of the jaws 1, according to the size of said tool. The shank 4 is then screwed into the handle 2 for closing and firmly clamping the jaws l on the tool. The device is now ready for use.

It is believed that the many advantages of a tap and reamer wrench constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A wrench of the character described comprising a pair of elongated, longitudinally aligned handles, heads on the inner end portions of the handles, one of the handles having a threaded socket in its its inner end portion, a shank projecting longitudinally from the inner end of the other handle, said shank being threaded and adapted to be screwed into the socket for adjustably connecting the handles, a pair of opposed jaws provided with complementary notches adapted for receiving a tool therebetween and rotatably mounted on the shank, and spring means engaging said jaws for normally urging the same apart in abutting engagement with the heads.

2. A wrench of the character described comprising a pair of elongated, longitudinally aligned handles, integral heads on the inner end portions of said handles, one of the handles having a threaded socket in its inner end portion, a threaded shank projecting longitudinally from the inner end of the other handle and adapted to be screwed into the socket for adjustably connecting the handles, a pair of opposed coacting jaws provided with complementary notches adapted for receiving a tool therebetween and rotatably mounted on the shank, spring means engaging said jaws for normally urging the same apart in abutting engagement with the heads, said jaws also having pairs of complemental radial grooves of difierent sizes in their faces for the reception of various sizes of tools, and coacting means on the jaws for slidably connecting said jaws against relative rotation.

3. A wrench of the character described comprising a pair of elongated, longitudinally aligned handles, integral heads on the inner end portions of said handles, one of the handles having a threaded socket in its inner end portion, a

threaded shank projecting longitudinally from the inner end of the other handle and adapted to be screwed into the socket, a pair of opposed, coacting jaws rotatably mounted on the shank in abutting engagement with the heads, said jaws having pairs of complemental radial grooves of difierent sizes in their faces for the reception of various sizes of tools, and coacting means on the jaws for slidably connecting said jaws against relative rotation, said means including pins mounted longitudinally on the jaws and projecting from the faces thereof, said jaws having sockets therein for slidably receiving the pins, and a coil spring encircling one of the pins for yieldingly urging the jaws apart.

BOLESLAW J. VIIECZOREK. 

